Nah.. once deleted.. they will never come back to my list again. I do not delete on impulse. I delete when that person absolutely do not deserve to be my friend. It hardly happens though. I've only deleted a few persons. Usually, I just block.

I have one occasion as I remember when I am chatting with my friend using a popular messenger he get mad of me because he doesn't want what I am saying to him. So I buz him to apologize but he never answer my messages. He never deleted me in his contact list. In my experience I don't delete the person address even though I am so angy or mad with him.

fortunately i have never got such an experience on the internet. but it was my girl friend who sometime made me so mad that delete her number from my phone book, and later i added it back. god! i remember her long phone number exactly.

Yeah some time I did it and sign back or invite again to her or him - I tell them that I did it by mistake so they again allow me - but if after some hot conversation I delete them - they delay to respond me again.